CVE-2024-21896

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If the path is to be treated as a Buffer, the implementation uses Buffer.from() to obtain a Buffer from the result of path.resolve(). By monkey-patching Buffer internals, namely, Buffer.prototype.utf8Write, the application can modify the result of path.resolve(), which leads to a path traversal vulnerability.\nThis vulnerability affects all users using the experimental permission model in Node.js 20 and Node.js 21.\nPlease note that at the time this CVE was issued, the permission model is an experimental feature of Node.js."}, {"lang": "es", "value": "El modelo de permiso se protege contra ataques de path traversal llamando a path.resolve() en cualquier ruta proporcionada por el usuario. Si la ruta se va a tratar como un b\u00fafer, la implementaci\u00f3n usa Buffer.from() para obtener un b\u00fafer a partir del resultado de path.resolve(). Al parchear los componentes internos del Buffer, es decir, Buffer.prototype.utf8Write, la aplicaci\u00f3n puede modificar el resultado de path.resolve(), lo que conduce a una vulnerabilidad de path traversal. Esta vulnerabilidad afecta a todos los usuarios que utilizan el modelo de permiso experimental en Node.js 20 y Node.js 21. Tenga en cuenta que en el momento en que se emiti\u00f3 este CVE, el modelo de permiso es una caracter\u00edstica experimental de Node.js."}], "id": "CVE-2024-21896", "lastModified": "2026-06-17T07:10:21.693", "metrics": {"cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 7.9, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N", "version": "3.0"}, "exploitabilityScore": 1.5, "impactScore": 5.8, "source": "support@hackerone.com", "type": "Secondary"}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-21896", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2024-03-12T04:00:41.699700Z", "version": "2.0.3"}}]}, "published": "2024-02-20T02:15:50.770", "references": [{"source": "support@hackerone.com", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2024/03/11/1"}, {"source": "support@hackerone.com", "tags": ["Issue Tracking"], "url": "https://hackerone.com/reports/2218653"}, {"source": "support@hackerone.com", "tags": ["Third Party Advisory"], "url": "https://security.netapp.com/advisory/ntap-20240329-0002/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2024/03/11/1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking"], "url": "https://hackerone.com/reports/2218653"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.netapp.com/advisory/ntap-20240329-0002/"}], "sourceIdentifier": "support@hackerone.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-27"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"affected_release": [{"advisory": "RHSA-2024:1687", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "nodejs:20-8090020240228165436.a75119d5", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-04-08T00:00:00Z"}, {"advisory": "RHSA-2024:1688", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "nodejs:20-9030020240229115828.rhel9", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-04-08T00:00:00Z"}], "bugzilla": {"description": "nodejs: path traversal by monkey-patching buffer internals", "id": "2265717", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2265717"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.9", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N", "status": "verified"}, "cwe": "CWE-22", "details": ["The permission model protects itself against path traversal attacks by calling path.resolve() on any paths given by the user. If the path is to be treated as a Buffer, the implementation uses Buffer.from() to obtain a Buffer from the result of path.resolve(). By monkey-patching Buffer internals, namely, Buffer.prototype.utf8Write, the application can modify the result of path.resolve(), which leads to a path traversal vulnerability.\nThis vulnerability affects all users using the experimental permission model in Node.js 20 and Node.js 21.\nPlease note that at the time this CVE was issued, the permission model is an experimental feature of Node.js.", "A flaw was found in Node.js. The permission model protects itself against path traversal attacks by calling path.resolve() on any paths given by the user. If the path is to be treated as a buffer, the implementation uses Buffer.from() to obtain a buffer from the result of path.resolve(). By monkey-patching buffer internals, namely, Buffer.prototype.utf8Write, the application can modify the result of path.resolve(), which leads to a path traversal vulnerability."], "name": "CVE-2024-21896", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "nodejs:16/nodejs", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "nodejs:18/nodejs", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "nodejs", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "nodejs:18/nodejs", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-02-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-21896\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-21896"], "statement": "This vulnerability affects users using the experimental permission model in active release lines 20.x and 21.x.", "threat_severity": "Important"}

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